Seiko Cal. 3831 - 442

The Seiko 3831-442 represents an important milestone in Seiko's 1998 lineup. Powered by the 3831 caliber with 31j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-65152b41eaae]

Also known as: Sumo, Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1998

Related Models

• Seiko 0773-815
• Seiko 5622-187
• Seiko 3816-299
• Seiko 5663-503
• Seiko 3840-293
• Seiko 7164-938
• Seiko 3837-336
• Seiko 6311-189
• Seiko 5627-494
• Seiko 6250-351
• Seiko 6344-149
• Seiko 6631-689