Seiko Cal. 6661 - 435

The 6661-435 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6661 caliber with 17j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-470b6003240e]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1980

Related Models

• Seiko 4462-423
• Seiko 5699-499
• Seiko 6382-592
• Seiko 5669-890
• Seiko 6341-449
• Seiko 4413-657
• Seiko 7090-797
• Seiko 5649-760
• Seiko 4481-505
• Seiko 4469-852
• Seiko 7074-166
• Seiko 5258-945