Seiko Cal. 3855 - 638

Seiko 3855-638

This Quartz model from 1989 features a 38mm Titanium case. Powered by the 3855 caliber with 21j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-f6950b41efcf]

Also known as: Sumo, Tuna

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
38mm
Case Thickness
14.7mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Champagne
Jewels
21j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1989

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