Seiko Cal. 4437 - 515

The Seiko 4437-515 represents an important milestone in Seiko's 1972 lineup. Powered by the 4437 caliber with 24j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-789312ccef4a]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1972

Related Models

• Seiko 5248-743
• Seiko 6385-148
• Seiko 5229-721
• Seiko 6337-844
• Seiko 4586-334
• Seiko 0794-424
• Seiko 6284-675
• Seiko 7167-418
• Seiko 5287-817
• Seiko 6138-900
• Seiko 6140-862
• Seiko 3871-831