Seiko Cal. 4520 - 490

This Hand-Winding model from 1983 features a 45mm Two-Tone case. Powered by the 4520 caliber with 26j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-9edf86eadb72]

Also known as: UFO, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1983

Related Models

• Seiko 6664-738
• Seiko 3841-323
• Seiko 7169-308
• Seiko 3875-908
• Seiko 4580-909
• Seiko 6186-535
• Seiko 6240-690
• Seiko 6214-793
• Seiko 6381-765
• Seiko 6239-536
• Seiko 0778-956
• Seiko 5277-184