Seiko Cal. 4545 - 840

Seiko 4545-840

The 4545-840 is a sought-after Solar piece from Seiko's golden era. Powered by the 4545 caliber with 31j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-1e8eca3b8f93]

Also known as: Tuna, Bullhead

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
34mm
Case Thickness
14.6mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
140m
Dial Color
Black
Jewels
31j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1970

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