Seiko Cal. 6388 - 275

The Seiko 6388-275 represents an important milestone in Seiko's 1971 lineup. Powered by the 6388 caliber with 35j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-644850a8eb21]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1971

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