Seiko Cal. 3855 - 638

This Quartz model from 1989 features a 38mm Titanium case. Powered by the 3855 caliber with 21j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-f6950b41efcf]

Also known as: Sumo, Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1989

Related Models

• Seiko 5628-927
• Seiko 6262-776
• Seiko 6352-537
• Seiko 7176-315
• Seiko 4589-156
• Seiko 7156-761
• Seiko 7061-323
• Seiko 6624-729
• Seiko 7085-572
• Seiko 3876-939
• Seiko 4597-975
• Seiko 6241-482