Seiko Cal. 3861 - 830

This Spring Drive model from 1965 features a 39mm Two-Tone case. Powered by the 3861 caliber with 33j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-dc6d85bf12dd]

Also known as: Samurai, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1965

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