Seiko Cal. 7161 - 644

The Seiko 7161-644 represents an important milestone in Seiko's 1967 lineup. Powered by the 7161 caliber with 18j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-dd39f3c01f5a]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1967

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