Seiko Cal. 3862 - 637

Seiko 3862-637

This Automatic model from 1972 features a 40mm Titanium case. Powered by the 3862 caliber with 28j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-9b9c57a88f27]

Also known as: Tuna, Goldfeather

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
9.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
140m
Dial Color
Silver
Jewels
28j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1972

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seikata-wm-9b9c57a88f27