Seiko Cal. 4437 - 147

The 4437-147 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-d30cf02dc78f]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1981

Related Models

• Seiko 7116-928
• Seiko 4568-179
• Seiko 3882-231
• Seiko 5280-866
• Seiko 7018-866
• Seiko 4491-664
• Seiko 7136-596
• Seiko 7074-778
• Seiko 4413-765
• Seiko 6375-360
• Seiko 6154-609
• Seiko 6623-728