Seiko Cal. 7138 - 677

The Seiko 7138-677 represents an important milestone in Seiko's 1996 lineup. With its 18mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-2455cc6c9c57]

Also known as: Monster, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1996

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