Seiko Cal. 6378 - 664

The 6378-664 is a sought-after Kinetic piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-67e452e8ebcd]

Also known as: Rally, Sea Horse

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1981

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