Seiko Cal. 4555 - 183

The 4555-183 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4555 caliber with 35j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-a072cfc1a2fd]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1978

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