Seiko Cal. 6633 - 765

This Automatic model from 1981 features a 45mm Titanium case. It features a White dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-e352e44506f2]

Also known as: Tuna, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1981

Related Models

• Seiko 6172-479
• Seiko 0739-299
• Seiko 7014-405
• Seiko 4578-274
• Seiko 7034-958
• Seiko 4443-830
• Seiko 6632-736
• Seiko 6311-221
• Seiko 6136-707
• Seiko 4556-359
• Seiko 5254-698
• Seiko 4410-256