Seiko Cal. 6121 - 251

This Automatic model from 1973 features a 39mm Titanium case. Powered by the 6121 caliber with 34j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-e2ed20947676]

Also known as: Helmet, Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1973

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