Seiko Cal. 7139 - 666

This Spring Drive model from 1988 features a 39mm Titanium case. Powered by the 7139 caliber with 25j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-211e57bf0705]

Also known as: Panda, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1988

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