Seiko Cal. 3860 - 639

Seiko 3860-639

This Quartz model from 1977 features a 37mm Titanium case. Powered by the 3860 caliber with 30j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-9ccc430cedda]

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
37mm
Case Thickness
15.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
30m
Dial Color
Green
Jewels
30j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1977

Related Models

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