Seiko Cal. 6670 - 423

This Spring Drive model from 1984 features a 41mm Titanium case. It features a Navy dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-d6774f524452]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1984

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