Seiko Prospex
SPB237J1 [N]
SPB237J1 [N]
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Seiko Prospex x Automatic ft. 1970 Heritage aka Captain Willard Reissue Men Diver Tonneau 200m Water Resistant Watch SPB237J1 SPB237 SPB-237 SPB-237J1
Celebrate Seiko dive watch legacy with this Prospex Limited Edition, inspired by 1965-1970 fabric strap models. Featuring a vintage-inspired dial, modern 6R35 automatic movement (70h power reserve), and 200m water resistance, this collector piece blends retro aesthetics with professional dive performance. Includes a premium fabric strap for authentic heritage appeal.
Caliber Number / Movement
6R35 (automatic with manual winding capacity)
Power Reserve / Accuracy
Approximately 70 hours (+25 to -15 seconds per day)
Crystal
Sapphire crystal (curved, anti-reflective coating)
LumiBrite
Lumibrite on hands, indexes and bezel
Case / Band Material
Stainless steel case with fabric (polyester) band
Water Resistance
200m / 660ft diver
Case Size
Thickness: 13.2 mm
Diameter: 42.7 mm
Length: 46.6 mm
Lug width: 20.0 mm
Other Specifications
Seiko Prospex x Automatic ft. 1970 Heritage aka Captain Willard Reissue
Made in Japan
Additional fabric (polyester) band inclusive
Unidirectional rotating bezel
Screw-down crown
Screw case back
24 jewels
Date display
Stop second hand function (hacking mechanism)
Regular timekeeping (analog display)
![SPB237J1 [N]](http://watchclub.com.sg/cdn/shop/products/27fce62304e475722da4d32674b223c2.jpg?v=1747394039&width=1445)
![SPB237J1 [N]](http://watchclub.com.sg/cdn/shop/products/7f841df18d8a0d896594b2bb2117367b.jpg?v=1747394039&width=1445)
![SPB237J1 [N]](http://watchclub.com.sg/cdn/shop/products/594c6f2fadd83cf774151e7696754921.jpg?v=1747394039&width=1445)