Seiko Cal. 4578 - 510

This Solar model from 1975 features a 42mm Two-Tone case. Powered by the 4578 caliber with 34j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-ca4954748870]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1975

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