Seiko Cal. 6641 - 345

This Spring Drive model from 1967 features a 43mm PVD Black case. It features a Champagne dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-a9734ee795e3]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1967

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