Seiko Cal. 6670 - 401

The 6670-401 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-2541ba09b34a]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1975

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