Seiko Cal. 6670 - 543

This Spring Drive model from 1986 features a 37mm Titanium case. With its 18mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-25fdc524adb4]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1986

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