Seiko Cal. 4437 - 123

This Spring Drive model from 1995 features a 43mm Hardlex-Coated Steel case. Powered by the 4437 caliber with 27j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-ad041e0d2325]

Also known as: Shogun, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1995

Related Models

• Seiko 5650-577
• Seiko 7195-207
• Seiko 6136-581
• Seiko 3872-133
• Seiko 6236-247
• Seiko 5233-893
• Seiko 6293-226
• Seiko 5620-251
• Seiko 0771-631
• Seiko 4442-632
• Seiko 0774-488
• Seiko 3884-919