Seiko Cal. 4551 - 227

This Hand-Winding model from 1965 features a 41mm PVD Black case. With its 21mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-5eac5491613c]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1965

Related Models

• Seiko 4424-182
• Seiko 7129-389
• Seiko 5684-590
• Seiko 6221-556
• Seiko 6274-404
• Seiko 6373-480
• Seiko 6184-180
• Seiko 7134-773
• Seiko 5611-317
• Seiko 6389-747
• Seiko 3870-195
• Seiko 7148-978