Seiko Cal. 5683 - 378

The 5683-378 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-a06bdbaebcf6]

Also known as: Samurai, UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1979

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