Seiko Cal. 6645 - 422

The Seiko 6645-422 represents an important milestone in Seiko's 1984 lineup. It features a Navy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-11f68a46251b]

Also known as: UFO, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1984

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