Seiko Cal. 4537 - 151

The Seiko 4537-151 represents an important milestone in Seiko's 1969 lineup. Powered by the 4537 caliber with 19j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-7e21efc1a5ce]

Also known as: UFO, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1969

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