Seiko Cal. 4518 - 136

The 4518-136 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4518 caliber with 23j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-6a2f4c9d41c1]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1993

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