Seiko Cal. 0723 - 637

The Seiko 0723-637 represents an important milestone in Seiko's 1983 lineup. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-e05a94ea2f48]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1983

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