Seiko Cal. 3855 - 166

This Spring Drive model from 1968 features a 40mm Two-Tone case. Powered by the 3855 caliber with 36j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-bf1b88103f43]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1968

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