Seiko Cal. 4423 - 446

The 4423-446 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-2bc1cec7feed]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1971

Related Models

• Seiko 5646-252
• Seiko 7182-312
• Seiko 6182-479
• Seiko 6234-130
• Seiko 6320-140
• Seiko 7086-970
• Seiko 6276-361
• Seiko 6626-636
• Seiko 6311-808
• Seiko 5235-478
• Seiko 7055-687
• Seiko 6627-470