Seiko Cal. 3840 - 128

Released in 1981, the Cal. 3840 with design code 128 was part of Seiko's domestic market collection. It features a Silver dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-dd176ca0c3db]

Also known as: Arnie

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1981

Related Models

• Seiko 7051-836
• Seiko 4457-231
• Seiko 6225-852
• Seiko 6244-210
• Seiko 5684-800
• Seiko 3821-958
• Seiko 6311-248
• Seiko 3880-182
• Seiko 7174-620
• Seiko 7075-258
• Seiko 6618-283
• Seiko 6310-932