Seiko Cal. 5615 - 665

The Seiko 5615-665 represents an important milestone in Seiko's 1978 lineup. Powered by the 5615 caliber with 28j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-440f7fc30c0a]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1978

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