Seiko Cal. 5691 - 512

Seiko 5691-512

The Seiko 5691-512 represents an important milestone in Seiko's 1971 lineup. Powered by the 5691 caliber with 26j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-6590f8174c8b]

Also known as: Bullhead, Rally

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
35mm
Case Thickness
8.1mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Black
Jewels
26j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1971

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