Seiko Cal. 6640 - 410

The Seiko 6640-410 represents an important milestone in Seiko's 1998 lineup. It features a Cream dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-00ea02a9ec7d]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1998

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