Seiko Cal. 5231 - 975

This Spring Drive model from 1999 features a 41mm Two-Tone case. Powered by the 5231 caliber with 23j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-acc451ab3d92]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1999

Related Models

• Seiko 3846-888
• Seiko 7064-110
• Seiko 6398-244
• Seiko 3840-361
• Seiko 6176-193
• Seiko 7070-983
• Seiko 4476-559
• Seiko 5253-634
• Seiko 3857-761
• Seiko 6143-115
• Seiko 6280-453
• Seiko 7034-629