Seiko Cal. 6218 - 923

This Hand-Winding model from 1977 features a 37mm Titanium case. Powered by the 6218 caliber with 26j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-46844ef9c6b5]

Also known as: Helmet, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1977

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