Seiko Cal. 6378 - 683

Released in 1968, the Cal. 6378 with design code 683 was part of Seiko's domestic market collection. It features a White dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-b4418fb2fd99]

Also known as: Bullhead, Rally

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1968

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