Seiko Cal. 0721 - 390

The 0721-390 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-f642edbce2ec]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1990

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