Seiko Cal. 4538 - 975

Seiko 4538-975

This Hand-Winding model from 1976 features a 34mm Stainless Steel case. Powered by the 4538 caliber with 35j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-efc412b13989]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
14.7mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Navy
Jewels
35j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1976

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seikata-wm-efc412b13989