Seiko Cal. 0721 - 977

Released in 1983, the Cal. 0721 with design code 977 was part of Seiko's domestic market collection. Powered by the 0721 caliber with 28j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-2fd4d843e6a2]

Also known as: UFO, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1983

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