Seiko Cal. 4437 - 136

The Seiko 4437-136 represents an important milestone in Seiko's 1975 lineup. It features a Navy dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-b5a4d1555e09]

Also known as: Bellmatic, Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1975

Related Models

• Seiko 7182-532
• Seiko 4485-961
• Seiko 7133-772
• Seiko 7052-846
• Seiko 4540-873
• Seiko 6225-194
• Seiko 5678-868
• Seiko 0775-649
• Seiko 5688-251
• Seiko 6673-644
• Seiko 6673-137
• Seiko 6245-755