Seiko Cal. 4551 - 639

Seiko 4551-639

The Seiko 4551-639 represents an important milestone in Seiko's 1966 lineup. Powered by the 4551 caliber with 17j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-24886794c1b0]

Also known as: Golden Tuna, Emperor

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
11.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Navy
Jewels
17j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1966

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