Seiko Cal. 6641 - 936

The 6641-936 is a sought-after Automatic piece from Seiko's golden era. With its 20mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-ce1debae6121]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1982

Related Models

• Seiko 3863-984
• Seiko 7129-612
• Seiko 5615-850
• Seiko 4517-887
• Seiko 4583-531
• Seiko 6371-240
• Seiko 5622-679
• Seiko 3886-521
• Seiko 3895-995
• Seiko 5678-282
• Seiko 6672-466
• Seiko 6656-169