Seiko Cal. 6616 - 307

Seiko 6616-307

This Quartz model from 1977 features a 34mm Two-Tone case. Powered by the 6616 caliber with 28j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-d87e248d70e0]

Also known as: World Timer, Baby Tuna

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
34mm
Case Thickness
8.3mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Black
Jewels
28j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1977

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