Seiko Cal. 6138 - 612

Seiko 6138-612

The Seiko 6138-612 represents an important milestone in Seiko's 1987 lineup. Powered by the 6138 caliber with 25j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-066fdcb7b822]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
34mm
Case Thickness
8.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Black
Jewels
25j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1987

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