Seiko Cal. 4420 - 514

This Spring Drive model from 1965 features a 46mm Titanium case. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-76882d6366c8]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1965

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