Seiko Cal. 4478 - 720

This Solar model from 1966 features a 34mm Titanium case. It features a Navy dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-25f4cafbaebc]

Also known as: Monster, Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

34mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1966

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