Seiko Cal. 6122 - 720

This Spring Drive model from 1970 features a 44mm Titanium case. Powered by the 6122 caliber with 23j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-5725888eff5c]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1970

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