Seiko Cal. 4487 - 238

Seiko 4487-238

Released in 1982, the Cal. 4487 with design code 238 was part of Seiko's domestic market collection. Powered by the 4487 caliber with 18j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-adfb409bc0df]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
36mm
Case Thickness
9.4mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Champagne
Jewels
18j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1982

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