Seiko Cal. 5263 - 671

Seiko 5263-671

The Seiko 5263-671 represents an important milestone in Seiko's 1968 lineup. Powered by the 5263 caliber with 28j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-ca167782892f]

Also known as: Helmet, UFO

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
14.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
160m
Dial Color
Black
Jewels
28j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1968

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seikata-wm-ca167782892f