Seiko Cal. 5650 - 766

The Seiko 5650-766 represents an important milestone in Seiko's 1985 lineup. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-6a9f339321b3]

Also known as: Tuna, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1985

Related Models

• Seiko 5636-809
• Seiko 5667-416
• Seiko 7145-156
• Seiko 0736-358
• Seiko 5210-684
• Seiko 6288-458
• Seiko 5234-552
• Seiko 3888-838
• Seiko 5616-785
• Seiko 0791-375
• Seiko 7057-550
• Seiko 4556-940