Seiko Cal. 6181 - 658

The Seiko 6181-658 represents an important milestone in Seiko's 1984 lineup. Powered by the 6181 caliber with 24j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-ce2faf06a460]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1984

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