Seiko Cal. 4591 - 516

Seiko 4591-516

The 4591-516 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4591 caliber with 23j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-e43c0a6391d1]

Also known as: UFO, Arnie

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Green
Jewels
23j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1968

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