Seiko Cal. 6616 - 998

This Automatic model from 1970 features a 38mm Stainless Steel case. Powered by the 6616 caliber with 22j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-954d9c19c5fb]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1970

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