Seiko Cal. 7139 - 641

This Spring Drive model from 1970 features a 43mm Two-Tone case. Powered by the 7139 caliber with 32j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-6fb39014c3e6]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1970

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