Seiko Cal. 6660 - 700

This Spring Drive model from 1989 features a 46mm PVD Black case. It features a Silver dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-54848f692f44]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1989

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