Seiko Cal. 5616 - 427

Seiko 5616-427

The 5616-427 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5616 caliber with 24j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-bdd1caae20da]

Also known as: Bullhead

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
14.1mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1973

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