Seiko Cal. 4440 - 686

Seiko 4440-686

The Seiko 4440-686 represents an important milestone in Seiko's 1975 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-f401e2c5ca14]

Also known as: Turtle, Silverwave

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
11.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
100m
Dial Color
Green
Jewels
22j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1975

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