Seiko Cal. 3828 - 916

Seiko 3828-916

This Quartz model from 1967 features a 37mm Hardlex-Coated Steel case. Powered by the 3828 caliber with 18j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-075adb73be53]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
14.6mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Black
Jewels
18j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1967

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