Seiko Cal. 6621 - 634

Released in 1998, the Cal. 6621 with design code 634 was part of Seiko's domestic market collection. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-be555afb19a2]

Also known as: Bullhead, UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1998

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