Seiko Cal. 6378 - 813

The 6378-813 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-2543039a3fea]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1984

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