Seiko Cal. 3855 - 387

This Automatic model from 1975 features a 44mm Titanium case. Powered by the 3855 caliber with 35j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-30ba4ac93ae3]

Also known as: Monster, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1975

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