Seiko Cal. 4581 - 751

Seiko 4581-751

The 4581-751 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4581 caliber with 18j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-1843b98a9740]

Also known as: Tuna, Rally

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
15.9mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
60m
Dial Color
Navy
Jewels
18j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1976

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seikata-wm-1843b98a9740