Seiko Cal. 6643 - 946

The Seiko 6643-946 represents an important milestone in Seiko's 1999 lineup. It features a Green dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-45094a0af146]

Also known as: Bellmatic, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1999

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