Seiko Cal. 6138 - 928

Seiko 6138-928

Released in 1987, the Cal. 6138 with design code 928 was part of Seiko's domestic market collection. Powered by the 6138 caliber with 22j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-f08df32cd23f]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
9.5mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Champagne
Jewels
22j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1987

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