Seiko Cal. 4537 - 227

The Seiko 4537-227 represents an important milestone in Seiko's 1969 lineup. Powered by the 4537 caliber with 36j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-abb1320a47e5]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1969

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