Seiko Cal. 6363 - 943

The 6363-943 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6363 caliber with 35j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-4832ec3438cf]

Also known as: Tuna, Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1984

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