Seiko Cal. 6621 - 635

This Solar model from 1977 features a 40mm Titanium case. Powered by the 6621 caliber with 31j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-2a30e63001c4]

Also known as: Samurai, Pogue

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1977

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