Seiko Cal. 6638 - 614

The Seiko 6638-614 represents an important milestone in Seiko's 1982 lineup. Powered by the 6638 caliber with 18j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-f684bfcf1f64]

Also known as: UFO, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1982

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