Seiko Cal. 3889 - 640

The Seiko 3889-640 represents an important milestone in Seiko's 1978 lineup. It features a Green dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-7761041257ac]

Also known as: Samurai, Monster

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1978

Related Models

• Seiko 4449-611
• Seiko 3810-959
• Seiko 7199-447
• Seiko 6284-306
• Seiko 4429-323
• Seiko 3824-262
• Seiko 6276-381
• Seiko 4592-743
• Seiko 3856-704
• Seiko 7146-430
• Seiko 6339-414
• Seiko 4570-995