Seiko Cal. 5646 - 457

Released in 1985, the Cal. 5646 with design code 457 was part of Seiko's domestic market collection. Powered by the 5646 caliber with 23j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-ca7b46e53211]

Also known as: UFO, Emperor

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1985

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