Seiko Cal. 4540 - 295

Seiko 4540-295

This Spring Drive model from 1977 features a 43mm Stainless Steel case. Powered by the 4540 caliber with 18j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-0b3283fbbbe3]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
9.4mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
90m
Dial Color
Cream
Jewels
18j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1977

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