Seiko Cal. 6363 - 707

The 6363-707 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6363 caliber with 34j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-1632c2d837dd]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1983

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