Seiko Cal. 6363 - 660

The Seiko 6363-660 represents an important milestone in Seiko's 1979 lineup. Powered by the 6363 caliber with 18j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-a435dfab89c2]

Also known as: Tuna, Rally

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1979

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