Seiko Cal. 6644 - 647

Seiko 6644-647

This Automatic model from 1982 features a 39mm Hardlex-Coated Steel case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-1c67987a9144]

Also known as: Sportsmatic, Crown

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
12.8mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1982

Related Models

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