Seiko Cal. 5681 - 423

This Quartz model from 1970 features a 40mm PVD Black case. Powered by the 5681 caliber with 21j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-8938d3ecdf2f]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1970

Related Models

• Seiko 3850-846
• Seiko 5254-631
• Seiko 7161-776
• Seiko 5652-798
• Seiko 4491-521
• Seiko 0755-164
• Seiko 7136-657
• Seiko 3851-215
• Seiko 7122-673
• Seiko 6675-237
• Seiko 0790-941
• Seiko 3811-451