Seiko Cal. 6378 - 241

The 6378-241 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-0cb5d09058ca]

Also known as: Tuna, Rally

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1989

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