Seiko Cal. 6687 - 366

Seiko 6687-366

This Quartz model from 1968 features a 39mm Titanium case. Powered by the 6687 caliber with 23j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-4c498dc659b6]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
39mm
Case Thickness
13.3mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Burgundy
Jewels
23j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1968

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seikata-wm-4c498dc659b6