Seiko Cal. 0728 - 107

Released in 1975, the Cal. 0728 with design code 107 was part of Seiko's domestic market collection. Powered by the 0728 caliber with 31j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-db1139def290]

Also known as: World Timer, Emperor

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1975

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