Seiko Cal. 3870 - 689

This Quartz model from 1994 features a 46mm Two-Tone case. Powered by the 3870 caliber with 21j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-429948d75a5e]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1994

Related Models

• Seiko 5637-696
• Seiko 4498-669
• Seiko 7170-238
• Seiko 4539-621
• Seiko 5216-610
• Seiko 5241-113
• Seiko 0725-285
• Seiko 5679-515
• Seiko 6370-981
• Seiko 3847-908
• Seiko 6257-109
• Seiko 6271-571