Seiko Cal. 0754 - 138

The 0754-138 is a sought-after Solar piece from Seiko's golden era. Powered by the 0754 caliber with 21j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-e04139b7bff3]

Also known as: Tuna, World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1966

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