Seiko Cal. 3855 - 665

Seiko 3855-665

This Automatic model from 1981 features a 44mm Titanium case. Powered by the 3855 caliber with 20j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-61e9481d3947]

Also known as: Sumo, Bellmatic

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
44mm
Case Thickness
13.8mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
White
Jewels
20j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1981

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seikata-wm-61e9481d3947