Seiko Cal. 5294 - 639

The Seiko 5294-639 represents an important milestone in Seiko's 1975 lineup. Powered by the 5294 caliber with 26j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-6b3b3baecca4]

Also known as: Helmet, Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1975

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