Seiko Cal. 4491 - 603

This Spring Drive model from 1966 features a 36mm Hardlex-Coated Steel case. Powered by the 4491 caliber with 27j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-bb3d767d9613]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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