Seiko Cal. 4477 - 633

The Seiko 4477-633 represents an important milestone in Seiko's 1980 lineup. Powered by the 4477 caliber with 21j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-6c30e7988eec]

Also known as: World Timer, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1980

Related Models

• Seiko 5231-577
• Seiko 6261-880
• Seiko 0793-518
• Seiko 6122-215
• Seiko 5262-837
• Seiko 6326-629
• Seiko 7162-807
• Seiko 4547-828
• Seiko 6261-283
• Seiko 7167-527
• Seiko 6229-990
• Seiko 6347-468