Seiko Cal. 3840 - 722

The Seiko 3840-722 represents an important milestone in Seiko's 1986 lineup. It features a White dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-ed54287b597e]

Also known as: Monster, Emperor

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1986

Related Models

• Seiko 6389-394
• Seiko 6635-484
• Seiko 7187-885
• Seiko 3826-663
• Seiko 6285-364
• Seiko 5647-255
• Seiko 0753-226
• Seiko 5693-153
• Seiko 0758-198
• Seiko 7174-920
• Seiko 5236-904
• Seiko 6293-670