Seiko Cal. 5648 - 710

Seiko 5648-710

This Automatic model from 1967 features a 45mm Hardlex-Coated Steel case. With its 18mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-a39de6e8d0bd]

Also known as: Monster, Sumo

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
9.6mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Silver
Jewels
30j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1967

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