Seiko Cal. 6666 - 428

The Seiko 6666-428 represents an important milestone in Seiko's 1978 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-6e568994e2fb]

Also known as: Sumo, Panda

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1978

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