Seiko Cal. 3840 - 993

The 3840-993 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3840 caliber with 28j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-0bf65bb164d1]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1993

Related Models

• Seiko 6697-542
• Seiko 5237-215
• Seiko 0714-927
• Seiko 4428-156
• Seiko 3819-575
• Seiko 0711-218
• Seiko 7033-389
• Seiko 6325-648
• Seiko 6696-537
• Seiko 6697-619
• Seiko 5299-722
• Seiko 6346-966