Seiko Cal. 4537 - 667

The Seiko 4537-667 represents an important milestone in Seiko's 1972 lineup. Powered by the 4537 caliber with 32j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-7560903a5985]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1972

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