Seiko Cal. 4525 - 520

The Seiko 4525-520 represents an important milestone in Seiko's 1965 lineup. Powered by the 4525 caliber with 34j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-f33c4bbaf0b9]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1965

Related Models

• Seiko 5649-585
• Seiko 6284-973
• Seiko 5271-818
• Seiko 5268-900
• Seiko 5219-822
• Seiko 0733-272
• Seiko 4565-467
• Seiko 6351-522
• Seiko 5291-315
• Seiko 6117-424
• Seiko 5231-217
• Seiko 6661-416