Seiko Cal. 6670 - 523

The Seiko 6670-523 represents an important milestone in Seiko's 1968 lineup. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-fe0562ee3765]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1968

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