Seiko Cal. 6665 - 764

The 6665-764 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-7409cb9e451c]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1970

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