Seiko Cal. 6635 - 881

The Seiko 6635-881 represents an important milestone in Seiko's 1983 lineup. It features a Black dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-e3ffa9e52c68]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1983

Related Models

• Seiko 6283-311
• Seiko 5655-338
• Seiko 4425-608
• Seiko 7121-655
• Seiko 7135-955
• Seiko 5614-625
• Seiko 5699-219
• Seiko 6112-434
• Seiko 4482-924
• Seiko 6256-978
• Seiko 4540-529
• Seiko 6182-564