Seiko Cal. 5637 - 430

Seiko 5637-430

Released in 1988, the Cal. 5637 with design code 430 was part of Seiko's domestic market collection. Powered by the 5637 caliber with 35j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-3489ec3006ca]

Also known as: Tuna, UFO

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
9.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
35j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1988

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seikata-wm-3489ec3006ca