Seiko Cal. 6621 - 813

Seiko 6621-813

The Seiko 6621-813 represents an important milestone in Seiko's 1986 lineup. Powered by the 6621 caliber with 27j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-135ff87e1e4b]

Also known as: Monster, Golden Tuna

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
41mm
Case Thickness
14.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
27j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1986

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