Seiko Cal. 6670 - 290

This Quartz model from 1981 features a 46mm Hardlex-Coated Steel case. It features a Navy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-af13eb318a74]

Also known as: Sumo, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1981

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