Seiko Cal. 6688 - 403

Seiko 6688-403

Released in 1993, the Cal. 6688 with design code 403 was part of Seiko's domestic market collection. It features a Silver dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-4e964eba66b9]

Also known as: Sumo, Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
9.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Silver
Jewels
18j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1993

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