Seiko Cal. 5294 - 639

Seiko 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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