Seiko Cal. 6231 - 499

The 6231-499 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-0a8efd0dc058]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1969

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