Seiko Cal. 6383 - 421

The Seiko 6383-421 represents an important milestone in Seiko's 1968 lineup. Powered by the 6383 caliber with 36j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-124fdb562a41]

Also known as: Helmet, Silverwave

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1968

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