Seiko Cal. 6691 - 778

Seiko 6691-778

This Quartz model from 1999 features a 45mm Gold-Plated case. Powered by the 6691 caliber with 31j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-973fdeb9dfa2]

Also known as: Baby Tuna

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
13.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Cream
Jewels
31j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1999

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