Seiko Cal. 6691 - 376

Released in 1972, the Cal. 6691 with design code 376 was part of Seiko's domestic market collection. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-785adaf0bdda]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1972

Related Models

• Seiko 5627-644
• Seiko 5253-638
• Seiko 7116-588
• Seiko 3879-532
• Seiko 6195-382
• Seiko 7180-790
• Seiko 5214-245
• Seiko 0762-634
• Seiko 6684-140
• Seiko 4489-348
• Seiko 6275-678
• Seiko 4413-686