Seiko Cal. 4537 - 769

The Seiko 4537-769 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-6417aac89f2a]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1978

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