Seiko Cal. 3860 - 931

Seiko 3860-931

This Spring Drive model from 1996 features a 39mm Titanium case. Powered by the 3860 caliber with 27j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-f32822d2d567]

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
39mm
Case Thickness
8.9mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
White
Jewels
27j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1996

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seikata-wm-f32822d2d567