Seiko Cal. 6390 - 172

The 6390-172 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-156ed28037ab]

Also known as: Turtle, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1968

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