Seiko Cal. 6661 - 538

The Seiko 6661-538 represents an important milestone in Seiko's 1984 lineup. Powered by the 6661 caliber with 26j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-5d22b399d0fe]

Also known as: Turtle

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1984

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