Seiko Cal. 6139 - 635

The Seiko 6139-635 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-050c9eea27ea]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1982

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