Seiko Cal. 4520 - 181

The Seiko 4520-181 represents an important milestone in Seiko's 1976 lineup. It features a Silver dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-a577cda94d79]

Also known as: Samurai, World Timer

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1976

Related Models

• Seiko 0779-346
• Seiko 5256-346
• Seiko 6623-601
• Seiko 7060-641
• Seiko 7182-936
• Seiko 6326-629
• Seiko 0713-690
• Seiko 0742-103
• Seiko 0720-949
• Seiko 0729-480
• Seiko 7079-578
• Seiko 6157-451