Seiko Cal. 0770 - 207

Seiko 0770-207

The Seiko 0770-207 represents an important milestone in Seiko's 1973 lineup. Powered by the 0770 caliber with 29j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-a3f1c4e62dcd]

Also known as: Sumo, Bullhead

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
14.1mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Burgundy
Jewels
29j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1973

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