Seiko Cal. 5639 - 976

The Seiko 5639-976 represents an important milestone in Seiko's 1998 lineup. With its 18mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-00c00c41d5f4]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1998

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