Seiko Cal. 4535 - 631

This Automatic model from 1989 features a 42mm Two-Tone case. Powered by the 4535 caliber with 28j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-b79341b704c3]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1989

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