Seiko Cal. 4561 - 401

The 4561-401 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4561 caliber with 25j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-4e96197660c1]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1992

Related Models

• Seiko 6260-266
• Seiko 6360-154
• Seiko 4580-859
• Seiko 4591-359
• Seiko 6664-791
• Seiko 7078-253
• Seiko 3868-382
• Seiko 7167-654
• Seiko 6321-414
• Seiko 6287-944
• Seiko 6622-786
• Seiko 6210-402