Seiko Cal. 6644 - 198

The Seiko 6644-198 represents an important milestone in Seiko's 1965 lineup. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-86e41ba8ec09]

Also known as: Samurai, Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1965

Related Models

• Seiko 7087-644
• Seiko 5631-805
• Seiko 5263-627
• Seiko 6669-547
• Seiko 3870-383
• Seiko 7143-582
• Seiko 5650-141
• Seiko 5610-770
• Seiko 5256-214
• Seiko 4442-814
• Seiko 5644-959
• Seiko 6642-564