Seiko Cal. 4538 - 435

Seiko 4538-435

The Seiko 4538-435 represents an important milestone in Seiko's 1986 lineup. Powered by the 4538 caliber with 20j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-325bdd3619f3]

Also known as: Tuna, Flighty

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
8.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Black
Jewels
20j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1986

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