Seiko Cal. 3821 - 685

The Seiko 3821-685 represents an important milestone in Seiko's 1975 lineup. With its 19mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-126f189400e7]

Also known as: Sumo, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1975

Related Models

• Seiko 6684-265
• Seiko 6227-658
• Seiko 6384-616
• Seiko 6386-775
• Seiko 6393-830
• Seiko 6265-653
• Seiko 4445-915
• Seiko 6112-907
• Seiko 6285-929
• Seiko 5239-659
• Seiko 6657-122
• Seiko 6347-509