Seiko Cal. 6635 - 687

The Seiko 6635-687 represents an important milestone in Seiko's 1998 lineup. It features a Champagne dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-e5af3ea18930]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1998

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