Seiko Cal. 5291 - 660

This Spring Drive model from 1968 features a 42mm Stainless Steel case. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-3c0acc1dc04b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1968

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