Seiko Cal. 4525 - 181

This Spring Drive model from 1984 features a 43mm PVD Black case. With its 19mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-e233c403097f]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1984

Related Models

• Seiko 6260-251
• Seiko 5296-574
• Seiko 7057-769
• Seiko 6161-510
• Seiko 7018-936
• Seiko 7121-733
• Seiko 5230-275
• Seiko 7047-546
• Seiko 6163-611
• Seiko 4413-383
• Seiko 4516-581
• Seiko 5657-575