Seiko Cal. 4566 - 837

The Seiko 4566-837 represents an important milestone in Seiko's 1976 lineup. Powered by the 4566 caliber with 18j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-ee4ab90c414a]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1976

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