Seiko Cal. 6641 - 557

The 6641-557 is a sought-after Solar piece from Seiko's golden era. With its 21mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-6cc1cd1b8f01]

Also known as: Tuna, Panda

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1981

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