Seiko Cal. 7139 - 251

The Seiko 7139-251 represents an important milestone in Seiko's 1977 lineup. It features a Champagne dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-7e15332cff94]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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