Seiko Cal. 4480 - 817

The Seiko 4480-817 represents an important milestone in Seiko's 1978 lineup. Powered by the 4480 caliber with 27j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-221c11bb4d33]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1978

Related Models

• Seiko 3899-873
• Seiko 6141-598
• Seiko 6627-224
• Seiko 6143-257
• Seiko 7087-305
• Seiko 6271-872
• Seiko 4482-748
• Seiko 6283-375
• Seiko 3879-552
• Seiko 4556-431
• Seiko 6348-197
• Seiko 0776-854