Seiko Cal. 4537 - 532

The Seiko 4537-532 represents an important milestone in Seiko's 1987 lineup. With its 21mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-568d11b171ca]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1987

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