Seiko Cal. 4550 - 289

Seiko 4550-289

The 4550-289 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4550 caliber with 18j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-d5c106e2c2f8]

Also known as: Golden Tuna, Emperor

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
38mm
Case Thickness
9.1mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Navy
Jewels
18j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1974

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