Seiko Cal. 5260 - 370

This Quartz model from 1977 features a 34mm PVD Black case. Powered by the 5260 caliber with 21j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-146f21e1aac9]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1977

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