Starking AM0603 Review – Dual-Crown Automatic Diver

The Starking AM0603 is a dual-crown diver-style watch with a more unusual layout than the standard budget sports piece. It uses a 304L stainless steel case, boxy mineral crystal with anti-reflective coating, two screw-in crowns, an internal bidirectional bezel, Miyota 8215 automatic movement, and 100 meters of water resistance.

The design feels sporty and technical, helped by the internal timing scale, orange dial center, silver outer section, and blue rubber strap. This is not the usual single-crown diver format, and that gives the AM0603 a more distinctive personality within Starking’s affordable lineup.

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Design & Case

The AM0603 measures 42mm in diameter, 12.5mm thick, and 49.5mm lug-to-lug, with a 22mm lug width. Visually, the wide strap stance and dual-crown layout give the watch a planted, assertive wrist presence.

The case is made from 304L stainless steel rather than 316L. That helps explain the cost structure, but this is still proper stainless steel, and the finishing gives the watch a clean sporty profile.

From the side, the case has a flat horizontally brushed flank with a C-shaped curve running from lug tip to lug tip. The lugs turn down aggressively at the tips, helping the case sit closer to the wrist.

The brushed flank transitions into the lug hoods through a polished bevel that widens as it moves toward the lug tips. Below the flank sits the polished lip of the screw-down caseback, while above it the tall polished fixed bezel supports the boxy mineral crystal. This release shares many characteristics commonly associated with modern diver watches.

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Movement & Crown

Inside the AM0603 is the Miyota 8215 automatic movement. It is a Japanese self-winding caliber with 21 jewels, a 3Hz beat rate of 21,600 vibrations per hour, and around 42 hours of power reserve.

The lower crown controls the movement. Once unscrewed, it allows manual winding, with the first pulled position setting the date and the second position setting the time.

The upper crown controls the internal bidirectional bezel. Both crowns sit on the right-hand side of the case and share the same deep notched knurling, although only the lower crown is signed.

The dual screw-in crown setup, together with the screw-down caseback, supports the stated 100 meters of water resistance. It also gives the watch a more technical feel in use, because the internal bezel is adjusted independently from the timekeeping functions.

Bezel

The internal bidirectional bezel is one of the defining features of the AM0603. It doubles as the inward-sloping rehaut, with a printed 60-minute scale around the dial edge.

That gives the watch a more instrument-like look. The timing scale does not sit on an external rotating bezel; it becomes part of the dial architecture, creating depth and structure beneath the boxy mineral crystal.

The upper crown controls this internal bezel, and I like that the crown does not feel loose or vague during rotation. There is tactile feedback as the bezel moves, so you can feel the detents while adjusting the scale.

It can be used for timing either by counting up or counting down. One practical point is that exact alignment at 12 can be a little finicky. When screwing the upper crown back in, the bezel can move slightly, which affects the precision of setting it exactly where intended. If this particular execution works for you, there’s a good chance other Starking models will also be worth a look.

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Strap

The AM0603 comes on a blue rubber strap, and it has a thick, meaty construction that suits the larger 42mm case and sporty dual-crown layout. The color also works naturally with the orange and silver dial arrangement.

The strap itself is fairly straightforward. It is unsigned and does not use quick-release spring bars, so it feels more rudimentary than some of the stronger Starking bracelet or strap setups I have seen.

There are two floating keepers to manage the excess length, which helps the strap wear more neatly once sized on the wrist.

The clasp improves the overall impression. Instead of a basic pressed buckle, Starking uses a milled clasp, and it is signed with the brand logo. That gives the strap setup a slightly more solid and considered feel, even though the rubber strap itself remains simple.

Flip the watch over and the screw-down caseback completes the functional case package.

Crystal & Dial

The Starking AM0603 uses a boxy mineral crystal with anti-reflective coating. Beneath it, the eye is drawn through the internal bezel, which also functions as the sloped rehaut and printed minute chapter.

The dial itself uses a clear two-tone layout. In the center, there is a matte orange inner circle, surrounded by a silver outer layer. That contrast gives the dial a technical, layered appearance.

The hour markers are applied baton indices, edged in chrome, with orange lume plots running through the centers. At 3 o’clock, the date window is framed, nicely beveled, and large enough to read easily.

The hands continue the same practical style. The hour and minute hands are baton-shaped, while the seconds hand uses a lollipop form. The orange lume plots carry through the hands, indices, and broader dial layout.

Freshly charged, the lume display has real character. The hour hand, minute hand, seconds hand, dial indices, and printed internal bezel elements all come alive. The effect suits the dual-crown internal-bezel personality of the watch, although the luminosity is not especially long-lasting.

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Summary

The Starking AM0603 stands out because it does something different within the budget diver-style space. The dual-crown setup, internal bidirectional bezel, orange and silver dial layout, blue rubber strap, and boxy mineral crystal give it a more technical personality than a simple everyday sports watch.

The case is made from 304L stainless steel, with brushed flanks, polished bevels, a polished fixed bezel, screw-down caseback, and two screw-in crowns. At 42mm across and 49.5mm lug-to-lug, it has real presence, but the downturn of the lugs helps the case sit close.

The Miyota 8215 gives the watch a dependable Japanese automatic movement, with 21 jewels, 21,600 vibrations per hour, and around 42 hours of power reserve.

The strap is simple, and the mineral crystal keeps the specification grounded in budget territory. But the internal bezel action, dual-crown architecture, readable date, and distinctive lume layout make the AM0603 an interesting Starking diver-style watch. Compare similar versatile divers side by side with our Comparison Tool.

Starking AM0603 Specifications

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