Seiko Cal. 4437 - 198

The Seiko 4437-198 represents an important milestone in Seiko's 1982 lineup. Powered by the 4437 caliber with 32j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-e40dd1ba9e45]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1982

Related Models

• Seiko 0763-506
• Seiko 4485-867
• Seiko 3868-885
• Seiko 0761-453
• Seiko 6142-854
• Seiko 4533-979
• Seiko 0767-677
• Seiko 6623-757
• Seiko 3863-277
• Seiko 6184-610
• Seiko 6264-407
• Seiko 5689-220