Seiko Cal. 4436 - 431

Seiko 4436-431

The 4436-431 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4436 caliber with 29j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-ccd5582f2f39]

Also known as: Tuna, Rally

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
14.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
120m
Dial Color
White
Jewels
29j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1974

Related Models

seikata-wm-ccd5582f2f39