Seiko Cal. 6637 - 442

Seiko 6637-442

This Hand-Winding model from 1990 features a 44mm Titanium case. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-434402407698]

Also known as: Silverwave, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
44mm
Case Thickness
9.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
Black
Jewels
18j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1990

Related Models

seikata-wm-434402407698