Seiko Cal. 5237 - 690

The Seiko 5237-690 represents an important milestone in Seiko's 1981 lineup. It features a Silver dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-c04769df3863]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1981

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