Seiko Cal. 6378 - 665

The Seiko 6378-665 represents an important milestone in Seiko's 1970 lineup. It features a White dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-21431d28f5a5]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1970

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