Seiko Cal. 6649 - 278

Seiko 6649-278

This Quartz model from 1987 features a 41mm Two-Tone case. Powered by the 6649 caliber with 30j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-78862861fceb]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
41mm
Case Thickness
11.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Cream
Jewels
30j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1987

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