Seiko Cal. 3894 - 100

This Spring Drive model from 1978 features a 38mm PVD Black case. With its 22mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-422d3d65c8ff]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1978

Related Models

• Seiko 0740-809
• Seiko 6280-512
• Seiko 7091-707
• Seiko 0758-677
• Seiko 7195-311
• Seiko 7055-533
• Seiko 6273-171
• Seiko 4473-156
• Seiko 6190-269
• Seiko 4535-461
• Seiko 4470-459
• Seiko 6278-540