Seiko Cal. 6645 - 647

The Seiko 6645-647 represents an important milestone in Seiko's 1980 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-1868ef54a7a0]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1980

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