Seiko Cal. 5668 - 400

The 5668-400 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-24eb087abaae]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1987

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