Seiko Cal. 7138 - 881

This Hand-Winding model from 1973 features a 34mm Two-Tone case. Powered by the 7138 caliber with 20j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-5a4a6ec490cf]

Also known as: Turtle, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1973

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