Seiko Cal. 5651 - 437

The Seiko 5651-437 represents an important milestone in Seiko's 1965 lineup. With its 22mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-dec191d74e75]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1965

Related Models

• Seiko 6333-401
• Seiko 4510-956
• Seiko 6260-950
• Seiko 4484-820
• Seiko 6114-654
• Seiko 7098-920
• Seiko 0775-255
• Seiko 6649-475
• Seiko 5694-712
• Seiko 6620-727
• Seiko 5635-301
• Seiko 4529-641