Seiko Cal. 5237 - 531

Seiko 5237-531

The Seiko 5237-531 represents an important milestone in Seiko's 1969 lineup. Powered by the 5237 caliber with 18j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-b5cc7ecf08ae]

Also known as: Pogue, Baby Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
43mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
60m
Dial Color
Green
Jewels
18j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1969

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