Seiko Cal. 6691 - 981

The 6691-981 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-03326e98f36b]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1965

Related Models

• Seiko 7081-279
• Seiko 5613-401
• Seiko 7157-555
• Seiko 5273-795
• Seiko 5671-175
• Seiko 6239-147
• Seiko 4446-635
• Seiko 4469-115
• Seiko 7079-505
• Seiko 6389-476
• Seiko 4474-880
• Seiko 7195-579