Seiko Cal. 3865 - 636

Seiko 3865-636

This Quartz model from 1980 features a 35mm Two-Tone case. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-6c1e7d7b1063]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
35mm
Case Thickness
11.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
200m
Dial Color
Blue Sunburst
Jewels
22j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1980

Related Models

seikata-wm-6c1e7d7b1063