Seiko Cal. 3820 - 175

This Hand-Winding model from 1971 features a 38mm Two-Tone case. Powered by the 3820 caliber with 30j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-228da7c1807e]

Also known as: Samurai, Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1971

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