Seiko Cal. 6647 - 187

The Seiko 6647-187 represents an important milestone in Seiko's 1974 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-c832a8c2a8c2]

Also known as: Bellmatic, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1974

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