Seiko Cal. 5231 - 347

This Hand-Winding model from 1991 features a 43mm Two-Tone case. Powered by the 5231 caliber with 32j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-38eb5e1a60ad]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1991

Related Models

• Seiko 6312-506
• Seiko 4410-682
• Seiko 6356-109
• Seiko 4586-234
• Seiko 4466-385
• Seiko 7060-354
• Seiko 6242-136
• Seiko 6236-131
• Seiko 7118-951
• Seiko 4550-601
• Seiko 6372-313
• Seiko 6393-883