Seiko Cal. 5237 - 766

The Seiko 5237-766 represents an important milestone in Seiko's 1981 lineup. Powered by the 5237 caliber with 20j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-726001bb90ab]

Also known as: Samurai, Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1981

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