Seiko Cal. 4518 - 648

Seiko 4518-648

The 4518-648 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4518 caliber with 21j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-662e44af33db]

Also known as: Sea Horse, Emperor

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
15.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Black
Jewels
21j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1973

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