Seiko Cal. 3840 - 790

The Seiko 3840-790 represents an important milestone in Seiko's 1997 lineup. Powered by the 3840 caliber with 31j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-012f0407fedd]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1997

Related Models

• Seiko 4416-137
• Seiko 4477-305
• Seiko 3878-145
• Seiko 4454-285
• Seiko 6241-357
• Seiko 7134-760
• Seiko 4588-819
• Seiko 4580-241
• Seiko 5295-785
• Seiko 5697-957
• Seiko 5254-344
• Seiko 7087-313