Seiko Cal. 6378 - 378

The 6378-378 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-310041f93c3f]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1975

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