Seiko Cal. 4427 - 287

This Solar model from 1971 features a 45mm Titanium case. It features a Silver dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-558dcd5f9ffd]

Also known as: Monster, Bullhead

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1971

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