Seiko Cal. 3858 - 818

This Hand-Winding model from 1975 features a 36mm Two-Tone case. With its 21mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-30de17e4f473]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1975

Related Models

• Seiko 7085-299
• Seiko 6665-627
• Seiko 4565-253
• Seiko 6115-174
• Seiko 5667-574
• Seiko 4568-777
• Seiko 6180-189
• Seiko 7175-937
• Seiko 3892-628
• Seiko 6392-360
• Seiko 3873-319
• Seiko 5650-653