Seiko Cal. 5634 - 344

The Seiko 5634-344 represents an important milestone in Seiko's 1977 lineup. Powered by the 5634 caliber with 31j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-9e76c066db3b]

Also known as: Helmet, Goldfeather

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1977

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