Seiko Cal. 5647 - 763

The Seiko 5647-763 represents an important milestone in Seiko's 1975 lineup. Powered by the 5647 caliber with 19j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-436ef46878f8]

Also known as: World Timer, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1975

Related Models

• Seiko 0758-361
• Seiko 4556-623
• Seiko 0782-411
• Seiko 7044-886
• Seiko 4541-332
• Seiko 7031-254
• Seiko 6612-218
• Seiko 6666-714
• Seiko 5624-396
• Seiko 7096-553
• Seiko 6137-125
• Seiko 5255-245