Seiko Cal. 6692 - 640

Released in 1981, the Cal. 6692 with design code 640 was part of Seiko's domestic market collection. It features a Silver dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-fdcf0c9b394d]

Also known as: Rally, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1981

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