300m Dive-Ready Water Resistance
Built for diving, this Seamaster Diver 300M includes 300m water resistance, a helium escape valve, a screw-in crown, and a unidirectional rotating bezel.
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Updated 4 months ago
Professional 42mm dive watch with blue ceramic wave dial, ceramic bezel, and 300m water resistance.

Built for diving, this Seamaster Diver 300M includes 300m water resistance, a helium escape valve, a screw-in crown, and a unidirectional rotating bezel.
The self-winding automatic movement is listed as a Master Chronometer and offers a 55-hour power reserve.
A stainless steel case and bracelet pair with a domed scratch-resistant sapphire crystal treated with anti-reflective coating on both sides.
The Omega Seamaster Diver 300M 210.30.42.20.03.001 is a 42mm stainless steel automatic dive watch with a blue ceramic wave dial, ceramic bezel, 300m water resistance, and a stainless steel bracelet.
The Seamaster Diver 300M is described as the gold standard for luxury dive watches under $6,000. It is praised for its state-of-the-art METAS-certified movement, durability, and historical significance, offering a technically superior, more affordable alternative to the Rolex Submariner.
The reviewer considers the 210.30.42.20.03.001 their favorite classic in the collection. It is lauded for its manufacture caliber, excellent finishing, and iconic design, which the author believes sets the standard for diving watches in almost every category.
The review highlights that the model successfully balances the original 1993 design DNA with modern, cutting-edge technology, specifically praising the METAS-certified movement and versatile style. The author expresses strong appreciation for the timepiece as a special watch that remains ahead of its time.
A long-term review that finds the watch significantly more premium than its predecessors, particularly in its dial, markers, and bracelet quality. The reviewer notes the watch remains a distinctive charm despite personal skepticism toward the co-axial escapement and the protruding helium escape valve.
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| Attribute | Specification | Notes |
|---|---|---|
| Band Material | Stainless steel | |
| Band Width | 20 mm | mm |
| Battery Life | 55 days | days |
| Case Diameter | 42 mm | mm |
| Case Material | Stainless steel | |
| Case Thickness | 13.56 mm | mm |
| Clasp Type | foldover clasp with comfort setting and diver extension | |
| Crystal Material | domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides | |
| Display Type | analog | |
| Features | Chronometer (Master Chronometer), Anti-magnetic (15,000 gauss), Helium escape valve, Screw-in crown, Transparent case back, Unidirectional rotating bezel, Date | |
| Gender Target | men | |
| Movement Type | Self winding (automatic) | |
| Power Source | automatic (self-winding) | |
| Water Resistance | 300 m | m |

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