Seiko Cal. 6644 - 161

This Spring Drive model from 1994 features a 45mm PVD Black case. With its 21mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-f0260aabad85]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1994

Related Models

• Seiko 6188-575
• Seiko 5657-220
• Seiko 6355-250
• Seiko 4599-323
• Seiko 5678-898
• Seiko 3888-873
• Seiko 0775-661
• Seiko 0766-932
• Seiko 7139-189
• Seiko 5218-593
• Seiko 6639-661
• Seiko 5682-902