Seiko Cal. 4554 - 903

Seiko 4554-903

The 4554-903 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4554 caliber with 20j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-0aedf2136fa8]

Also known as: Bullhead, UFO

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
9.0mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Green
Jewels
20j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1978

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