Seiko Cal. 4437 - 252

The 4437-252 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-1e2ea44503b0]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1980

Related Models

• Seiko 5692-497
• Seiko 3832-611
• Seiko 4567-760
• Seiko 6662-233
• Seiko 6240-808
• Seiko 6665-136
• Seiko 6369-103
• Seiko 5233-195
• Seiko 7168-993
• Seiko 6271-377
• Seiko 5667-892
• Seiko 0757-873