Seiko Cal. 6663 - 736

The Seiko 6663-736 represents an important milestone in Seiko's 1975 lineup. It features a White dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-7d8ab11bfb13]

Also known as: UFO, Rally

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1975

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