Seiko Cal. 5640 - 545

Seiko 5640-545

The 5640-545 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5640 caliber with 35j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-80029ea1443e]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
8.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
White
Jewels
35j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1969

Related Models

seikata-wm-80029ea1443e