Seiko Cal. 7121 - 658

Seiko 7121-658

The 7121-658 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7121 caliber with 32j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-b96a5b4ded0b]

Also known as: Sumo, Silverwave

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
42mm
Case Thickness
9.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Blue Sunburst
Jewels
32j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1966

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