Seiko Cal. 6637 - 321

Seiko 6637-321

The Seiko 6637-321 represents an important milestone in Seiko's 1983 lineup. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-cf923ce298a1]

Also known as: Silverwave, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
44mm
Case Thickness
15.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
100m
Dial Color
Silver
Jewels
24j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1983

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