Seiko Cal. 6138 - 363

The 6138-363 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6138 caliber with 23j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-b63fae01a8f3]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1985

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