Seiko Cal. 5211 - 160

This Spring Drive model from 1967 features a 37mm Stainless Steel case. Powered by the 5211 caliber with 23j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-8379b80bcc4f]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1967

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