Seiko Cal. 0721 - 838

The 0721-838 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0721 caliber with 31j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-cc9aa4d7d015]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1984

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