Seiko Cal. 5638 - 302

Seiko 5638-302

The Seiko 5638-302 represents an important milestone in Seiko's 1973 lineup. Powered by the 5638 caliber with 20j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-2907b3f0079f]

Also known as: Monster, UFO

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
14.6mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
120m
Dial Color
White
Jewels
20j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1973

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