Seiko Cal. 7139 - 992

This Hand-Winding model from 1986 features a 45mm Two-Tone case. Powered by the 7139 caliber with 36j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-bdbaf2bab712]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1986

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