Seiko Cal. 5634 - 910

The Seiko 5634-910 represents an important milestone in Seiko's 1965 lineup. Powered by the 5634 caliber with 27j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-f30c32794e7a]

Also known as: UFO, Rally

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1965

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