Seiko Cal. 5665 - 436

Seiko 5665-436

This Solar model from 1978 features a 39mm Titanium case. Powered by the 5665 caliber with 28j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-ad0a2b1232e1]

Also known as: Turtle

Specifications

Movement
Solar
Case Material
Titanium
Case Width
39mm
Case Thickness
13.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
110m
Dial Color
Silver
Jewels
28j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1978

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