Seiko Cal. 6643 - 552

Released in 1986, the Cal. 6643 with design code 552 was part of Seiko's domestic market collection. It features a Cream dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-6e88b9da681c]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1986

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