Seiko Cal. 5661 - 715

Seiko 5661-715

The Seiko 5661-715 represents an important milestone in Seiko's 1998 lineup. Powered by the 5661 caliber with 30j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-d24997694da1]

Also known as: Tuna, Bullhead

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
36mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Green
Jewels
30j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1998

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