Seiko Cal. 0721 - 134

The 0721-134 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0721 caliber with 33j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-a4fdf480028f]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1980

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