Seiko Cal. 6657 - 645

The Seiko 6657-645 represents an important milestone in Seiko's 1997 lineup. It features a Cream dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-0926ae2de958]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1997

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