Seiko Cal. 3851 - 923

This Quartz model from 1971 features a 35mm Stainless Steel case. Powered by the 3851 caliber with 21j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-27e6875e9e1a]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1971

Related Models

• Seiko 3891-693
• Seiko 6623-470
• Seiko 4420-343
• Seiko 0781-622
• Seiko 7033-497
• Seiko 7096-693
• Seiko 6644-108
• Seiko 5695-333
• Seiko 6377-215
• Seiko 7060-992
• Seiko 6132-628
• Seiko 6263-976