Seiko Cal. 3831 - 427

The 3831-427 is a sought-after Solar piece from Seiko's golden era. Powered by the 3831 caliber with 17j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-6a301151edb1]

Also known as: Sumo, Rally

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1967

Related Models

• Seiko 6629-114
• Seiko 6146-788
• Seiko 4510-925
• Seiko 4468-328
• Seiko 6257-997
• Seiko 5219-754
• Seiko 3897-436
• Seiko 6329-503
• Seiko 7048-521
• Seiko 6378-113
• Seiko 3823-552
• Seiko 4481-239