Seiko Cal. 6180 - 538

The 6180-538 is a sought-after Solar piece from Seiko's golden era. Powered by the 6180 caliber with 32j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-83b012fe0ea0]

Also known as: Sumo, Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

32j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1973

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