Seiko Cal. 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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