Seiko Cal. 4478 - 421

The 4478-421 is a sought-after Solar piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-b6e526ee01fe]

Also known as: Bullhead, Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1992

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