Seiko Cal. 5691 - 616

The Seiko 5691-616 represents an important milestone in Seiko's 1991 lineup. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-82d9ddfcd91a]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1991

Related Models

• Seiko 5230-151
• Seiko 0725-609
• Seiko 7176-803
• Seiko 6258-258
• Seiko 0717-700
• Seiko 7148-811
• Seiko 6651-232
• Seiko 0799-153
• Seiko 6227-503
• Seiko 6238-553
• Seiko 6297-931
• Seiko 6638-814