Seiko Cal. 6641 - 763

Seiko 6641-763

This Hand-Winding model from 1995 features a 40mm Stainless Steel case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-42c5b827f7bf]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
8.6mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Green
Jewels
30j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1995

Related Models

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