Seiko Cal. 3812 - 931

Seiko 3812-931

The Seiko 3812-931 represents an important milestone in Seiko's 1999 lineup. Powered by the 3812 caliber with 25j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-0c9431a309fb]

Also known as: Helmet, Navigator

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
11.0mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
White
Jewels
25j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1999

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