Seiko Cal. 3860 - 373

This Hand-Winding model from 1974 features a 40mm Two-Tone case. Powered by the 3860 caliber with 29j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-6d80e386c019]

Also known as: Turtle, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1974

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