Seiko Cal. 5237 - 763

Released in 1975, the Cal. 5237 with design code 763 was part of Seiko's domestic market collection. Powered by the 5237 caliber with 28j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-018d38da8551]

Also known as: Monster, Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1975

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