Seiko Cal. 6641 - 501

The 6641-501 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-4da6de280115]

Also known as: Tuna, World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1984

Related Models

• Seiko 6346-192
• Seiko 3839-289
• Seiko 7182-286
• Seiko 6271-976
• Seiko 4556-463
• Seiko 4592-945
• Seiko 6243-945
• Seiko 4473-642
• Seiko 5294-532
• Seiko 7030-234
• Seiko 4579-184
• Seiko 3850-920