Seiko Cal. 6645 - 646

The Seiko 6645-646 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-131a70387ae7]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1973

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