Seiko Cal. 4552 - 634

Seiko 4552-634

The 4552-634 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4552 caliber with 23j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-efdc86582e08]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
42mm
Case Thickness
14.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
21,600 bph
Power Reserve
64 hours
Year
1992

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