Seiko Cal. 0777 - 503

Released in 1975, the Cal. 0777 with design code 503 was part of Seiko's domestic market collection. Powered by the 0777 caliber with 27j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-2939e1eeb5a5]

Also known as: UFO, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1975

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