Seiko Cal. 0722 - 637

The Seiko 0722-637 represents an important milestone in Seiko's 1986 lineup. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-d3896bd12c2d]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1986

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