Seiko Cal. 4530 - 903

Seiko 4530-903

The 4530-903 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4530 caliber with 36j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-e9e1644236b1]

Also known as: Bullhead, Goldfeather

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Burgundy
Jewels
36j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1972

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