Seiko Cal. 6642 - 645

Released in 1968, the Cal. 6642 with design code 645 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-aa910765bebd]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1968

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