Seiko Cal. 0729 - 587

This Spring Drive model from 1977 features a 37mm Two-Tone case. Powered by the 0729 caliber with 28j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-ddcedcbaba17]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1977

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