Seiko Cal. 6644 - 770

This Solar model from 1993 features a 42mm Stainless Steel case. Powered by the 6644 caliber with 33j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-f992db958565]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1993

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