Seiko Cal. 4438 - 871

This Quartz model from 1968 features a 39mm Two-Tone case. It features a Green dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-7e3efd6faf8d]

Also known as: Sumo, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1968

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