Seiko Cal. 6640 - 409

Released in 1995, the Cal. 6640 with design code 409 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-3cea47ec692a]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1995

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