Seiko Cal. 4561 - 243

The 4561-243 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4561 caliber with 25j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-b77df7745e38]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Burgundy

Jewels

25j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1967

Related Models

• Seiko 0727-384
• Seiko 3826-449
• Seiko 4596-479
• Seiko 7193-410
• Seiko 4498-927
• Seiko 3897-813
• Seiko 4462-372
• Seiko 6330-122
• Seiko 4574-419
• Seiko 6169-154
• Seiko 5644-922
• Seiko 4460-259