Seiko Cal. 0747 - 640

Seiko 0747-640

This Quartz model from 1976 features a 38mm PVD Black case. Powered by the 0747 caliber with 19j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-bcc60a84bfce]

Also known as: Baby Tuna

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
38mm
Case Thickness
11.1mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Navy
Jewels
19j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1976

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