Seiko Cal. 4421 - 525

The 4421-525 is a sought-after Automatic piece from Seiko's golden era. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-56961bffa1cb]

Also known as: Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1971

Related Models

• Seiko 6183-727
• Seiko 3856-524
• Seiko 7041-542
• Seiko 4438-388
• Seiko 0728-589
• Seiko 3840-834
• Seiko 3840-761
• Seiko 6168-113
• Seiko 6313-788
• Seiko 4533-764
• Seiko 0774-903
• Seiko 0764-672