200m Dive-Ready Water Resistance
Built with 200m water resistance, a screw-down crown, screw case back, and unidirectional rotating bezel for dive-watch functionality.
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Updated 4 months ago
Modern reinterpretation of Seiko’s 1970s 6105 dive watch with 200m water resistance.

Built with 200m water resistance, a screw-down crown, screw case back, and unidirectional rotating bezel for dive-watch functionality.
The Seiko Caliber 6R35 automatic movement includes manual winding and a stop second hand function for precise time setting.
A stainless steel case with super hard coating, stainless steel band, and curved sapphire crystal provide a robust everyday exterior.
The Seiko Prospex Willard SPB151 is a modern reinterpretation of Seiko’s 1970s 6105 dive watch, featuring an automatic Seiko Caliber 6R35 movement with manual winding, a stainless steel case and bracelet, and 200m water resistance.
The reviewer highly praises the watch, describing it as robust, faithful to the original design, well-executed for the price, and a wise move by Seiko to make this iconic style widely available.
The reviewer considers the watch a fantastic, durable tool watch that successfully lived up to its reputation during challenging real-world use, though they expressed reservations about the weight of the bracelet.
The reviewer lauds the watch as a worthy heir to the 6105, highlighting its comfort, legibility, and the reliability of the 6R35 movement, ultimately finding the price justified by the watch's quality and character.
The reviewer appreciates the faithful design update but concludes that the watch is overpriced given its standard specifications and reported issues with bezel alignment.
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| Attribute | Specification | Notes |
|---|---|---|
| Band Material | Stainless steel | |
| Band Width | 20 mm | mm |
| Battery Life | 70 days | days |
| Case Diameter | 42.7 mm | mm |
| Case Material | Stainless steel (super hard coating) | |
| Case Thickness | 13.2 mm | mm |
| Clasp Type | three-fold clasp with secure lock, push button release with extender | |
| Crystal Material | sapphire crystal (curved) | |
| Display Type | Analog | |
| Features | date display, stop second hand function, unidirectional rotating bezel, screw-down crown, LumiBrite on hands/indices/bezel, screw case back | |
| Gender Target | men | |
| Movement Type | Automatic with manual winding (Seiko Caliber 6R35) | |
| Power Source | automatic | |
| Water Resistance | 200 m | m |

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