Seiko Cal. 4427 - 735

This Hand-Winding model from 1978 features a 39mm Titanium case. It features a White dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-b880364d340f]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1978

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