Seiko Cal. 5658 - 876

Seiko 5658-876

The 5658-876 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5658 caliber with 21j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-a4a5bff57f60]

Also known as: Monster, Helmet

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
11.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
21j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1972

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