Seiko Cal. 5257 - 365

Seiko 5257-365

This Automatic model from 1969 features a 46mm Titanium case. Powered by the 5257 caliber with 17j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-36e0455381bb]

Also known as: Baby Tuna, Emperor

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
46mm
Case Thickness
11.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Silver
Jewels
17j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1969

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seikata-wm-36e0455381bb