Seiko Cal. 4538 - 100

Seiko 4538-100

The Seiko 4538-100 represents an important milestone in Seiko's 1986 lineup. Powered by the 4538 caliber with 20j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-f93b0491043e]

Also known as: Sumo, Arnie

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
10.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Black
Jewels
20j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1986

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