Seiko Cal. 6644 - 875

This Hand-Winding model from 1997 features a 37mm PVD Black case. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-e138c07011c7]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1997

Related Models

• Seiko 0762-617
• Seiko 4468-557
• Seiko 6688-352
• Seiko 6134-181
• Seiko 4426-689
• Seiko 6670-281
• Seiko 3833-712
• Seiko 6127-700
• Seiko 6185-751
• Seiko 7060-949
• Seiko 6223-727
• Seiko 7169-923