Seiko Cal. 6115 - 998

This Hand-Winding model from 1971 features a 43mm Hardlex-Coated Steel case. Powered by the 6115 caliber with 33j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-0c5a36d104a9]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1971

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