Seiko Cal. 6623 - 541

The 6623-541 is a sought-after Solar piece from Seiko's golden era. Powered by the 6623 caliber with 31j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-9ee7d7ca591c]

Also known as: Monster, Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1972

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